Patents by Inventor Scott M. Shields

Scott M. Shields has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and system for creating a mercury halide standard for use in testing a mercury analyzer system
    Patent number: 7037725
    Abstract: A method and system are provided for creating a mercury halide standard, and for using that standard to test a mercury analyzer system. Gaseous elemental mercury of a known concentration from a gas cylinder and a halogen donor are fed to a reaction chamber where they react to form mercury halide. The mercury halide is fed to a mercury analyzer system where it is converted to reform gaseous elemental mercury which is then measured by a mercury analyzer. By comparing either the amount of elemental mercury supplied to the reaction chamber or the amount of mercury halide formed in the reaction chamber with the amount of elemental mercury converted from the mercury halide, the ability of the mercury analyzer system to convert mercury halide to gaseous elemental mercury can be evaluated.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: May 2, 2006
    Assignee: Spectra Gases, Inc.
    Inventors: Stephen B. Mandel, Scott M. Shields
  • Method and system for creating a mercury halide standard for use in testing a mercury analyzer system
    Patent number: 6852542
    Abstract: A method and system are provided for creating a mercury halide standard, and for using that standard to test a mercury analyzer system. Gaseous elemental mercury of a known concentration from a gas cylinder and a halogen donor are fed to a reaction chamber where they react to form mercury halide. The mercury halide is fed to a mercury analyzer system where it is converted to reform gaseous elemental mercury which is then measured by a mercury analyzer. By comparing either the amount of elemental mercury supplied to the reaction chamber or the amount of mercury halide formed in the reaction chamber with the amount of elemental mercury converted from the mercury halide, the ability of the mercury analyzer system to convert mercury halide to gaseous elemental mercury can be evaluated.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: February 8, 2005
    Assignee: Spectra Gases, Inc.
    Inventors: Stephen B. Mandel, Scott M. Shields
  • Method and system for creating a mercury halide standard for use in testing a mecury analyzer system
    Publication number: 20040152198
    Abstract: A method and system are provided for creating a mercury halide standard, and for using that standard to test a mercury analyzer system. Gaseous elemental mercury of a known concentration from a gas cylinder and a halogen donor are fed to a reaction chamber where they react to form mercury halide. The mercury halide is fed to a mercury analyzer system where it is converted to reform gaseous elemental mercury which is then measured by a mercury analyzer. By comparing either the amount of elemental mercury supplied to the reaction chamber or the amount of mercury halide formed in the reaction chamber with the amount of elemental mercury converted from the mercury halide, the ability of the mercury analyzer system to convert mercury halide to gaseous elemental mercury can be evaluated.
    Type: Application
    Filed: February 3, 2003
    Publication date: August 5, 2004
    Applicant: Spectra Gases, Inc.
    Inventors: Stephen B. Mandel, Scott M. Shields